Punch or tool holding apparatus



Jan. 30, 1940.

B. c. Ros-r 2938,33 PUNCH 0R TOOL HOLDING APPARATUS Filed Jan. 9, 1937 -lll...-

Patented Jan, 30, 1949 t unl-Ts T ENT' @FFE CE 2,188,633 i roncaI on 'rootl .nominoarr-nanos Bhertel C. Rost, Foxboro, Massnassignor to The Foxboro Company, Foxboro, Mass., ay corpora- .tion of Massachusetts Application January 9, 1937, Serial No. 119,758

5 Claims. (Cl. 164--118) The present invention relates to an improve- Chart markings on the cut. In the apparatus ment in punch or tool holders wherein a too-l, as Shown, plate l is provided with two sets of opa punch, cutter, or other implement may be more posed radial guide ways as drill holes 'l and l', accurately and readily set or adjusted to predeu spaced 90 apart and eaoh extending from an termine the position of an area to be operated outer edge f the plate t0 Said bOIe 4. Eah

on thereby or of a hole or perforation to be hole l houses and guides a sleeve retainer in the punched. For exemple, in printing recording form of a plunger having an enlarged inner instrument. charts or the like having a central end forming a head Which bears Ayeldingly opening and cna-rt incr-kings on both sides con against a peripheral flat side of sleeve 6; and centric therewith, the present invention facilieach guide hole l accommodates a similar pluns- 1c tates obtaining printings on both sides which are er 3' 0f which the head bears rigidly against accurately concentric with the central opening, l sleeve 5 in opposition to one of said yielding` particularly in a method where one side of the heads. A set screw 9, Figl-lre l, iS threaded in chart is printed and the chart sheets perforated the outer end of each guide hole l' and a plus i0 at the same time, such, for example, as that is secured in the outer end of each guide hole l. l5 y more fully described in the co-pending applica- ASprng Il iS interposed between the ODPOSed tion of Arthur G, Beal and Bernard Holmberg, ends 0f each plunger 8 and the corresponding serial No. 62,846 filed February '1, i936. plus Il! respectively in each guide hole l; and a one embodiment of my invention is illustrated rod ll is similarly arranged between each set* in the drawing attached to and forming a part screw 9 and plunger 8' in. each guide hole l. 20 of the present specification and wherein- The DllIlCh Carrier Or Sleeve 5 iS adjllStahly Figure l is a top plan view; and l supported in position in vbore 4 by the two plung- Figure 2 e. central transverse section. l ers 8 biased toward said Carrier by springs Il As shown in said drawing and as applied more and the two plungers 8', and iS Capable 0f transpartjemayly to the making of recording instruverse adjustment therein to obtain concentricity 25 ment charts, apparatus embodying my invention With the Chart markings Of the Cnt t0 be printed includes a base or support in the form of a plate from, by apprODriate manipulation 0f the Set I adapted to be secured to the bed of n, printing screws 9 in cooperation with said base and said press or the like and provided with conventional Springs ll, this arrangement being efeCtlVe in means as clips 3 cooperating with recesses 3' for Obtaining eXtremelY fille and aCCuratelY C011- 30 retaining a cut 2 or printing plate in position trolled adjustments. thereon for printing'. Ordinarily, a cut for print-V A hOllOW CYlindriCal pllhCh 01 die l2 iS fitted ing recording instrument charts is provided with Snngly intO the Cylindrical here 0f Sleeve 6 S0 that a central opening accurately concentric with the its Cutting DOSitiOn iS determined by the above circular chart markings represented on the out. deSCrihed adjustment 0f Sleeve (i tranSVerSely in 35 Economical and effective printing of charts of relation to bore 4. this type involves punching the central opening I claimt of the chart sheet simultaneously with printing l. Punching apDaratll-S @OnlllriSing a base, a the chart markings on one side thereof. It is punch carrier, opposed Carrier holders mounted 40 one of the objects of my invention to provide 0n Said has@ and Ohe 0f WhChS Spring nreSSed 40 means whereby the perforating Cutter 01- punch to retain said carrier between them, and means may be assembled and adjusted in such relation Cooperating With the has@ and Sad hold-era t0 to the bed-plate of the printingvpress and to the adjust the position 0f the punch Carlier in Tela cut 2, for example that the markings printed by tion t0 the basa said cut will be concentric with the central open- 2- Punching apparatus Comprising a buse, a

' ing in the printed chart sheet punched bythe punch earner7 opposed Carrier holders slidably perforating cutter, y mounted on said base, a set screw threaded in For purpose, the plate l has an opening Said. baise and Cooperating Said Carrier holdor bore 4 enlarged at its inner end to receive the ers t0 adjust the Position uf the punch Carrier annular flange 5 of an adjustable punch carrier irl-relation t0 the hase, and a Spring arranged to 50 p.

in the form of a hollow sleeve ii of substantially DreSS One 0f Said hOlderS yieldingly against a Side square cross-sectional contour and to allow for of said carrier.

transverse adjustment of said sleeve in bore 4 3. Punching apparatus Comprising a base, said l when necessary to make said sleeveand therefore base having a central bore` and radially disposed a punch, as I2, carried thereby concentric with recesses spaced 90 apart and. opening into said55 bore, a punch carrier adapted to be adjustably supported in said bore, carrier holders slidably mounted in said recesses, and means cooperating with said base and with said holders to adjust the position of the punch carrier transversely in said bore.

4. Punching apparatus comprising a base, a punch carrier, a plurality of sets of opposed carrier holders mounted on said base, each of said sets including opposed slidable holders with end portions arranged to engage the carrier on opposite sides thereof, a compression yspring bearing against the other end portion of one of said holders of each set, and a set screw (zo-operating with the base and With the other end portion of the other holder to adjust the position thereof and of the punch carrier in relation to the base. 5. Tool holding apparatus comprising a base, guide Ways provided by said base each open at one end and With the end opening of one guide Way spaced from and opposite the end opening of the other guide Way, plungers mounted in said end openings to move toward and from each other, one of said plunge-rs being biased to- Ward the other, a tool carrier mounted between said plungers, and means cooperating With the base and movable endwise against one of said plungers to vary the position of said carrier between the spaced end openings of said guide Ways. I

BHERTEL C. ROST. 

